Avril Lavigne, Alanis Morissette, R. Kelly on 'The X Factor'

Slideshow posted in Photos | Monday, November 21, 2011

11 of 26: Melanie Amaro (L) and R. Kelly perform his 1996 song 'I Believe I Can Fly' on 'The X Factor' pre-finale on Dec. 21, 2011 on FOX. ( Photo / Ray Mickshaw / FOX)

Get more: 'The X Factor', TV